Checking the content of the host ipv6.h headers is incompatible with cross compilation. Target headers may not be the same as the host. Do direct build test instead using the ${CC} (cross) compiler to detect headers issues. Define _GNU_SOURCE to make sure glibc ipv6 definitions are exposed. Signed-off-by: Baruch Siach <baruch@xxxxxxxxxx> --- configure | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/configure b/configure index aa3f7f334971..8639a38eba96 100755 --- a/configure +++ b/configure @@ -51,8 +51,21 @@ echo "[*] Checking system headers." [ -z "$IPV6" ] && IPV6=yes if [[ "$IPV6" == "yes" ]]; then echo -n "[*] Checking ipv6 headers ... " - RET=$(grep __UAPI_DEF_IN6_PKTINFO /usr/include/linux/ipv6.h) - if [ -z "$RET" ]; then + rm -f "$TMP" || exit 1 + + cat >"$TMP.c" << EOF +#include <netinet/in.h> +#include <netinet/ip6.h> +#include <linux/in6.h> +#include <linux/ipv6.h> + +int main() +{ + struct in6_addr test; +} +EOF + ${CC} ${CFLAGS} -D_GNU_SOURCE "$TMP.c" -o "$TMP" &>"$TMP.log" + if [ ! -x "$TMP" ]; then echo $RED "[BROKEN]" $COL_RESET "See https://patchwork.ozlabs.org/patch/425881/" else echo $GREEN "[OK]" $COL_RESET -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe trinity" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html